Chadwick Adding Machine (Japan)
The numbers are dialed by hand. tens carry is automatic. The red plastic handle on the right clears the result register (see photo below for a clearer shot).
Here is jazzy minimalist(!) video from apparently the same model (from jamacdonald on youtube.com)
This Japanese adder was apparently marketed under a variety of names -- Solo Adder, Neckermann Haushaltkalkulator -- or at least these appear very similar:
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